Plate casting and finishing machine



Oct; 2 8, 1930. H. A. w. WOOD I PLATE CASTING AND FINISHING MACHINEOriginal Filed Jan. 28, 1927 3 Sheets-Sheet 1 W. a M W illlmllll Oct.28, 1930. H. A. w. WOOD PLATE CASTING AND FINISHING MACHINE OriginalFiled Jan. 28. 1927 43 Sheets-Sheet 2 Oct. 28, 1930. H. A. w. wobo1,779,523

PLATE CASTING AND FINISHING MACHINE Original Filed Jan. 28, 1927S'Sheets-Sheet 3 Patented Oct. 28, 1930 TEKSTATas PeTsET oFFIcE" HENRYA. WISE WOOD, or NEW Yonic, N. Y., AssIenon T woon NEWSPAPER MAGI-IINERY CORPORATION, or NEW YORK, n. Yl, A CORPORATION or VIRGINIA IELA'IE CASTING AND FINISHING MACHINE Application filed Januar 28, 1927,Serial No. 164,227. Renewed September 1929.

can be stripped fromthe plate and the plateremoved, and especially toperform all'of these operationsby 'a single rotation of the 15"core. Theinvention'also involves the operapartly rotated and the ring drawings inwhich.

tion of a casting bar at thelower edge of the plate to maintain it inposition while the ribs on theback of theplate are being smoothed downon the concavesideand allow itto be.

removed automatically when that operation is completed to allow theplate to be'ejected.

Other objects and advantages of the invention will appear hereinafter.

Reference istobe had to the accompany? Fig. 1 is a side elevation of amach-ineconis broken off the casting ready for the next operation; I 5 cr p V Fig. 3 is a similar view showing the core partly finished V.

3 with the plate entirely finished and the. core rotated around to aposition in which "ghekplate has started to be ejected from the ac V 5is a similar view showingtheplate entirely ejected and the matrix beingstripped therefrom; and r Fig. 6 is a sectional view of the means foroperating the casting bar, the position here being intermediate 7between" the positions shown inFigs. 3 and 4.

In my prior application, Serial l lo. 632,639, 4

'filedApril 17, 1923, I have shown. a machine of inside of the plate.

this type in which the plate, together with the matrix is ejected fromthe boxby the first half revolution of the core so that the matrix canbe stripped from the plate, then the plate during the next halfrevolution is entered into the mold in the place it formerly occupied.On the start of the-second revolution of the core, the plate was shavedby a knife carried by the core and on the second half of the secondrevolution the plate was finally ejected ready to beremoved. Two

revolutions of the core were required tocomplete the cycle of operationsnecessary to. make a finished plate'and present it in a posi tion to beremoved from the mold.

In this invention these operations are ac,

complished in a single-revolution of the. core,

thus simplifying the machine in many reef spects.

I have shown the invention asapplied to a machine mounted on. a frame 9provided with a power driven shaft 10 which rotates w constantly. Thisshaftis providedwith arotating clutch section 11 slidingly keyed to' itand adapted to be moved by a hand clutch lever 12 into position toclutch it to a worm 13 rotatable and freely mounted on the shaft 7 10.This worm operates a. worm wheel 14' fixed ona shaft 20 and causes thatshaft to rotate when the lever is moved in to. connect the clutch; Thislever 12 is provided with a lug15 which is controlled by a cam 16 havinganotch for receiving the lug 15 this cam being fixed on the worm, wheelor shaft 20.' I Therefore when theworm wheel and the Fig. 4 is a'similar view showing the parts" about 180.from the positionshown inFi'gpshaft 20 have rotated a completerevolution the hand lever can be movedin to release the g clutch and stop the machine.

The machine as shown-comprises a sta tionary concave back 21 forreceiving a matrix Magainst which the metal is to be cast to form aprintingplate. The flat face of the back is located at an inclination sothe I metal can be introduced along a straight edgeat the top. The otherside of the-mold.

.is formed by a convex core 22 of semi-cylindrical form fixed on theshaft 20 and rotat- The send-cylindrical mold formed by these two partsis provided on each straight edge with a radially slidable matrix bar25.

On a shaft 26 is pivotally mounted a casting bar 33. This is shaped tocover the edge of the matrix bar, grip the edge of the matrix thereto.and seal that edge of the mold. This bar with the two hubs by which itis mounted on the shaft 26 and projections 34 constitutes a lever. Twosprings 35 are provided, connected with stationary lugs 36 on the backfor normally holding this bar out of casting position as shownin Fig. 5.On the shaft 20 is a cam projection 27 which engages a lever 28 having ahook 29 for engaging a lug 30 on the casting bar 33 and normally holdingthe casting bar in position to seal the lower edge of the mold as shownin Figs. 2 and 3. Once during each revolution of the shaft 20 theprojection 27 unlocks the bar and then the springs 35 pull it into openposition as shown in Fig. 5.

On the pouring side the mold is provided with a pouring gate 37 thedetails of which will not be described herein as any gate can beemployed. I prefer to use a gate described in a prior application SerialNo. 108,632, filed lVIay 12, 1926, which operates to break off the tailof the plate as shown in Fig. 2 and leave the plate ready for the restof the operation. The matrix bars 25 are forced inwardly to clamp theedges of the matrix by cams 41. One of these cams is located on theshaft 26 and the other on a parallel shaft 26 connected to operatesimultaneously with the shaft 26. The latter is operated by a handle 42.The pouring spout 37 cooperates with the upper matrix bar to hold thatedge of the matrix.

The core which is semi-cylindrical in form, is provided with an ejectingbar 38 arranged radially and fixed to the lower edge of the core as itappears in casting position. This cooperates with the bars 25 and 33 tocomplete the lower edge of the mold. The core is also provided with abar 39 arranged radially at the opposite side of the core for smoothingthe interior of the plate. Likewise the core is provided with aprojection 40 for supporting the plate when it is ejected from the moldas shown in Fig. 5.

The operation of the machine is as follows:

In Fig. 2 the mold is shown closed and filled with metal and also thepouring gate 37 is shown shifted laterally to break off the tail andrelease the upper edge of the matrix. This gate is manipulated to getrid of this tail by turning the handle 42 which through an arm 13 andlink 4% raises the gate and moves it out of the way of the rotatingparts during their subsequent operation. This operation also turns theshafts 26 and 26 to release the edges of the matrix.

Now the operating handle 12 is moved back to move the lug 15 from thenotch in the cam 16 and close the clutch. The shaft 20 now rotates acomplete revolution, the first part of which is indicated in Fig. 3.Here the bar 39 is shown as smoothing the interior ribs of the plate andbringing them down to a cylindrical surface ready to be applied to theprinting cylinder of the press. The casting bar 33 remains in closedposition at this time on account of the latch or hook 29. When half arevolution has been completed, the plate is entirely finished on theback. At this time the projection 27 engages the lever 28, lifts thehook 29 and frees the casting bar 33. The springs 35 pull this bar backand at the same instant the ejecting bar 38 comes around and engages therear of the plate at the top. The position of the parts just after thisoccurs is shown in Fig. 4.

Now the plate with its matrix is being ejected on the second half of thefirst revolution of the shaft 20. The end of that operation is shown inFig. 5. ported by the projection 40 on the shaft 20. The matrix can betaken ofi", then the casting removed in any desired direction and thematrix put back in the mold. The handle 42 is brought back totheposition shown in Fig. 2 and the matrix bar 25 at the bottom and thecorresponding bar radially opposite at the top are forced in by the cams41. The pouring spout or sprue 37 is brought down by the same operationinto casting position and the machine is ready for a second cycle ofoperations.

This accomplishes the results of the above specified application by onerotation of the shaft 20 and thus simplifies the organization of themachine. The machine is stopped when a complete rotation is finished byholding the starting lever in position for the lug 15 to rest againstthe core cam 16 and enter the notch therein when it registers with it.This necessitates the separation of the clutch just at the time when acomplete revolution is made and prevents its stopping at any otherpoint. The ribs on the back or concave face of the plate are shown inthis case as being smoothed off to a uniform surface by pressure of thebar 39 having a comparatively blunt edge, instead of being shaved off inthe usual way. It is to be understood, however, that a sharp shavingblade can be used without reorganizing the machine in any way. Thepouring gate 37 can be operated as in a prior application of Hans C.Jordhoy, Serial No. 108,632, filed May 12, 1926.

Although I have illustrated and described only a single form of theinvention I am aware of the fact that modifications can be made thereinby any person skilled in the art without departing from the scope of theinvention as expressed in the claims. There fore, I do not wish to belimited to all the The plate is sup- 1 details of construction hereinshown and described, but what I do claim is:-

1. The combination with a stereotype plate casting back of segmentalform, of a core having a convex surface rotatable therein between whichand the back theplate is adapted to be cast, means rotatable with thecore for smoothing the interior of the plate in the back as the core isrotated through the first halt revolution, and means rotatable with thecore for ejectingthe plate. j

2. The combination with a 1 stereotype plate casting mold ofsemicircular shape, of a core cooperating with the back to complete themold cavity and rotatable on the axis of the back, means for rotatingthe core a complete revolution and then stopping it, and means on thecore and rotatable therewith whereby as the core rotates through thesecond half revolution the plate will be moved with it out of the backto expose the matrix thereon for stripping, said core be ing providedwith means for smoothing the interior of the plate as it rotates throughthe first half revolution. 7

3. The combination with a stereotype plate casting backof segmentalform, of a core having a convex surface rotatable there in, meansrotatable with the core for smoothing the interior of the plate whilethe plate rests against the back in its original casting positiontherein against the matrix and means on the core and rotatable therewithfor ejecting the matrix.

4. In a curved stereotype plate casting mold, the combination with asemi-cylindrical rotatable core and a semi-cylindrical back, of a bar onone edge of the core adapted to shape the interior of the plate as thecore rotates through half a revolution, and

bars inwardly.

6. In a semi-cylindrical stereotype plate casting mold, the combinationwith a semicylindrical core and back, of means for rotating the core acomplete revolution, a casting bar mounted to swing on a pivot andadapted to move into a position to close one straight edge of the mold,a latch for holding the casting bar in its closed position, meansrotatable with the core for holding the casting bar during part of therevolutionand for releasing it at a definite point in the revolution ofthe'core;

7. In a semi-cylindrical stereotype plate casting: mold, the combinationwith a semicylindrical'core and back, of means for rotating? thecore' acomplete revolution, a casting bar mounted to swing? on a pivotandadapted to move into a position toclose one straight edge of themo'ld, alatchforholding the casting bar in its closed position, means rotatablewith the. core for holding the casting bar during part of the revolutionand for releasing it at a definite pointin the revolution of: the core,and means on the core, normally cooperat ingwith the castingbar'forclosing that end of the mold, and in aposition to engage theoppositestraight edge of the casting when the core has rotated through ahalf revolution to eject the casting from the mold in a circumferentialdirection immediately after the latch is released.

8. In a stereotype plate casting mold, the combination with a back andcore, both semicylindrical in shape and arranged with their flat sidesat an inclination to the horizontal, ot' a casting ejecting bar fixed onthe core and located radially in position to project over the lower endofthe mold cavity, a matrix bar projecting over the same end of the moldcavity from the other side, and a casting bar movable to a positionbetween said bars to completely close the mold and having means forholding'the matrix bar in position.

9. In a stereotype plate casting mold, the combination with a back andcore, both semicylindrical in shape, of a casting ejecting bar fixed onthe core to project over the end of the mold cavity, a matrix barprojecting over the same end of the mold cavity from the other side, anda casting bar movable to a position between said bars to completelyclose the mold.

10. The combination with a stereotype plate casting back of segmentalform, of a core having a convex surface rotatable therein between whichand the back the plate is adapted to be cast, means rotatable with thecore for smoothing the interior of the plate in the back as the core isrotated through the first halt revolution, and means on the oppo siteedge of the core from the smoothing means adapted to engage the rearedge of the plate and eject it as the core rot-ates through the secondhalf of a complete revolution.

11. The combination with a stereotype" plate casting mold ofsemi-circular shape, of a core cooperating with the back to complete themold cavity and rotatable on the axis of the back, means for rotatingthe core a complete revolution and then stopping it,said core beingprovided with means for smoothing the interior of the plate as itrotates through the first half revolution, and means on the oppositeedge of the core from the smoothing means adapted to engage the rearedge of the plate and eject it as the core rotates through the secondhalf of a complete revolution.

12. The combination with a stereotype plate casting back of segmentalform, of a core having a convex surface rotatable therein, meansrotatable with the core for smoothing the interior of the plate Whilethe plate rests against the back in its original casting positiontherein against the matrix and means on the opposite edge of the corefrom the smoothing means adapted to engage the rear edge of the plateand eject it as the core rotates through the second half of a completerevolution.

In testimony whereof I have hereunto affixed my signature.

HENRY A. WISE WOOD.

